CVE-2026-8100CWE-23

Impact A security issue has been identified in Chef 360 that could allow unauthorized access to protected API endpoints under specific conditions

High · published June 18, 2026

CVSS v4.0
8.6
EPSS
1%
Percentile
45.2
In the wild
Unconfirmed
What it is

Impact

A security issue has been identified in Chef 360 that could allow unauthorized access to protected API endpoints under specific conditions. This issue is due to improper handling of URL-encoded paths during request processing. In certain scenarios, an authenticated request may bypass standard access controls gaining additional privileges, potentially allowing access to API endpoints that are intended to be restricted to higher-permissioned roles. The impact is limited to environments where the affected request patterns can be triggered and depends on specific deployment configuration and access controls in place.

Resolution

The issue has been addressed through product updates that improve request validation and enforce strict path normalization before authorization checks.  Customers are advised to update to the latest available version containing the fix, version 1.7.1 or later.

The record
Technical detail
CVSS v4.0
8.6 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/S:N/AU:Y/RE:M
EPSS
0.00549 · 45.2th percentile
Weakness
CWE-23 · Relative Path Traversal
Published
2026-06-18T21:18Z
EPSS history
Timeline
  • 18 JUN 21:18Z
    Impact A security issue has been identified in Chef 360 that could allow unauthorized access to protected API endpoints under specific conditions
    cvelistv5